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QuestionChemistry

What does + 2 mean on an ion?
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Step 1:
I'll solve this problem step by step:

Step 2:
: Understanding Ion Charge

An ion is an atom or molecule that has gained or lost electrons, resulting in a net electrical charge. The + 2 charge indicates the specific number of electrons lost by the ion.

Step 3:
: Interpreting the + 2 Charge

- A + 2 charge means the ion has lost 2 electrons - The positive sign indicates an excess of protons compared to electrons - This creates a positively charged ion, also called a cation

Step 4:
: Electron Loss Mechanism

When an atom loses 2 electrons, it becomes a cation with a charge of $$2^{+}$$ or simply $$+2

Step 5:
: Examples of + 2 Ions

- Iron(II) ion: $$Fe^{2+}
Common examples include:

Final Answer

A + 2 charge on an ion means the atom has lost 2 electrons, resulting in a positively charged ion with two more protons than electrons.